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Recent Advances in High Performance Polymers—Tribological Aspects
Open AccessArticle

Static and Dynamic Friction of Pure and Friction-Modified PA6 Polymers in Contact with Steel Surfaces: Influence of Surface Roughness and Environmental Conditions

V-Research GmbH, Stadtstrasse 33, 6850 Dornbirn, Austria
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Lubricants 2019, 7(2), 17; https://doi.org/10.3390/lubricants7020017
Received: 30 November 2018 / Revised: 28 January 2019 / Accepted: 13 February 2019 / Published: 16 February 2019
(This article belongs to the Special Issue Advances in Polymer Tribology)
In the present study, PA6 polymers with and without solid lubricant inclusions were investigated against S1100QL steel surfaces that had different surface roughness values—a very high surface roughness (Rz ≈ 40 µm) and a low surface roughness (Rz ≈ 5 µm). Static and dynamic friction coefficients were analysed under a series of nominal contact pressures (2.5 to 40 N/mm2) considering the influences of polymer water saturation, temperature, counter-body surface roughness and lubrication. Mechanisms for the observed influences of the respective parameters are provided and are interpreted from the view of the adhesive and deformative contributions to the friction force. View Full-Text
Keywords: polymer tribology; sliding contacts; surface roughness; adhesion; deformation polymer tribology; sliding contacts; surface roughness; adhesion; deformation
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MDPI and ACS Style

Voyer, J.; Klien, S.; Velkavrh, I.; Ausserer, F.; Diem, A. Static and Dynamic Friction of Pure and Friction-Modified PA6 Polymers in Contact with Steel Surfaces: Influence of Surface Roughness and Environmental Conditions. Lubricants 2019, 7, 17.

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